Air conditioning system drain pan



FIG. 1 is a perspective view of an air conditioning system drain pan showing my new design;

FIG. 2 is an exploded perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a rear view thereof.

The broken lines in FIG. 2 show the relationship of hardware to the air conditioning system drain pan only and form no part of the claimed design. 

CLAIM The ornamental design for an air conditioning system drain pan, substantially as shown and described. 